This is informational only, since we actually have nothing to do with it.

Message sent to some (apparently not all) dash users this morning:

Dear dash(TM) Customer,

We would like to inform you that we will be performing routine maintenance on our dash(TM) servers beginning Wednesday, September 5th at 7:30am PDT and ending at 7:30pm PDT. During that time, dash(TM) services will continue to function as normal, but you will not be able to register a new device, create a new dash account, or make changes to existing dash(TM) accounts, applications or services. If you have any issues with device you can contact Sony Customer Support at 866-918-2485 or visit our support website at www.sony.com/dashsupport. We thank you very much for your continued loyalty to dash(TM) and Sony.

Team dash(TM)

Sony operates a completely separate set of servers - they still use some chumby.com domain names within their backend, so error messages on the device are misleading.

It appears that the message was a bit optimistic, since the devices themselves appear to be down as well. I have faith that they'll get it sorted out.

EDIT:
Here's the announcement of the outage on Sony's forum.